COMSTACK cs_createbysocket(int s, CS_TYPE type, int blocking,
int protocol);
COMSTACK cs_create_host(const char *str, int blocking,
void **vp);
COMSTACK cs_createbysocket(int s, CS_TYPE type, int blocking,
int protocol);
COMSTACK cs_create_host(const char *str, int blocking,
void **vp);